Nitrogen oxide detector

Details Nitrogen oxide detector Nitrogen oxide detector

1997-09-18

1999-01-19

Bell, Bruce F.

Electrolysis: processes, compositions used therein, and methods

Electrolytic analysis or testing

For nitrogen or nitrogen containing compound

204425, 204427, 73 232, 73 2321, G01N 2726

Patent

active

058610928

ABSTRACT:
A method and a detector for detecting nitrogen oxide in test gas are provided wherein test gas which contains NOx and interference gases is supplied through an oxygen feeder 4 into a measuring chamber 1a, and the interference gases are oxidized by oxygen or oxygen ion supplied to the measuring chamber 1a through oxygen feeder 4. A total amount of NOx in the test gas is detected based on a level of EMF produced between a first electrode 2 for detecting oxygen and NO2 gas and a second electrode 3 for detecting oxygen.

REFERENCES:
patent: 4927517 (1990-05-01), Mizutani et al.
patent: 5217588 (1993-06-01), Wang et al.
patent: 5476001 (1995-12-01), Hoetzel et al.
patent: 5554269 (1996-09-01), Joseph et al.
patent: 5763763 (1998-06-01), Kato et al.
patent: 5780710 (1998-07-01), Murase et al.
Patent abstracts of Japan, vol. 16, No. 421 (P-1414), Sept. 4, 1992 & JP 04 142455A (Osaka Gas Co. Ltd.).

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